Firefox: Every new version of Firefox offers enticing new features, but the real question is whether or not your beloved Firefox extensions are ready for the jump. Is It Compatible? puts the compatibility information right in your add-ons window.
There isn't much more to this handy little extension, once you install Is It Compatible? whenever you open the add-ons window in Firefox — as seen above in the screenshot — you'll see not only the extensions you have installed but also the versions of Firefox they are rated for displayed in a minimum-maximum format.
If you only have one or two critical Firefox extensions you rely on, it probably isn't much of a hassle to visit Mozilla and confirm their compatibility. With more than a few extensions however, Is It Compatible makes a tedious process as simple as scrolling down your extension list.
Is It Compatible? is a free extension and works wherever Firefox does. Have a favourite tool for keeping Firefox in top shape? Let's hear about it in the comments.